I have done some research about the subject but I can't find the difference between Temperature Element (TE) and Temperature Indicator (TI)
Here is an image of the P&ID of the project am working on if it can help clarify my question.
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Sign up to join this communityI have done some research about the subject but I can't find the difference between Temperature Element (TE) and Temperature Indicator (TI)
Here is an image of the P&ID of the project am working on if it can help clarify my question.
The element does the measuring and the indicator shows the value.
If you think of a simple thermometer, the bulb at the bottom measures the temperature and the glass tube indicates the value...
Temperature indicator consists of two parts: the first part is the temperature element itself and the second part is the electronic part that conditions the signal and convert it to 4 to 20 and then send it to control system .
TI = Temperature Indicator; Shows temperature local (in pipe, canal, wall, …) TT = Temperature Transmitter; Remote monitoring temp. (0-10V, 4-20mA, ...) TE = Temperature Element; Remote monitoring temp. by resitance (Pt100, NTC 5k, ...)
TTI = Temperature Transmitter Indicator; Remote monitoring temp. with display
PT = Pressure Transmitter TA = Temperature Alarm TAh = Tempreature high Alarm FI = Flow Indicator QTrh = Quality Transmitter relative humidity